Weighing-scale.



H. CUMMER.

WEIGHING SCALE.

APPLICATION FILED AUGNI, 190s. nmzwm MAB. 291s.

@n BHs-sisi 5.

Q? 51M @Mz Patented Oct. 21, 1913.

2 SHEETB'SHEET 2.

'WEEE Stearns Parana-oratori..

HAtRRY C UMMER0F. BUFEALO, NEW. YORK.

WEIGHING-SCALE PatentedOct. 21, 1913.

Application, med Augiist 7.1996.- seriai No.132a572. Renewed-rauen 7:1913: serial-m. 752,786;

To all whom lrimay concern:

B it known that I', HARRY GUMMER, a.

citizen of* the- United'l States, residing at Buffalo, in the county of Erie and-State of.

-New York, have invented a-new and useful' Improvementf in-\Yeighing v.Sca-les, ofWh-ich the following is a-spec-ification.

. This invention relates to scales Orba-lances4 inwhichthe equilibrium is automatically festablisledgby the shifting ofthe bearing point of affrocking beamA as contradistinproduces. desirableand eicient scale, either?I of lie ordinary' indicating, computing or'ref cordingA types,-. of simple'- `and= inexpensivel construction which requires`- iro-spring, or,

counterpoise. Y

Other objects ofthe AVinventionare-to so' construct the scale' -that thedevice operated by the rockingvbeam for indicating or' reA cording' tli'eWei-gh-t orf price`,',oi" both; the weight an'd price of the fmaterial f'weighed,

will reciprocated nla 'fsitraighta line; to-

provide Asimple means for .,retaining- 'the scale pan always; in' a horizontal position; and to improve scales ofthe type,`rnentioned in therespects'- hereinafter described and' set-forth in theclaims.

In the accompanying drawings, consisting of two sli'eets :v Figure lie a. longitudinal sec-V tional elevation of a computing, or price indicating,A scale embodying the invention.

Fig.l 2 is a plan view thereof. Fig. 3-is a transverse sectional elevation thereof, in line 3 3, Fig.. 2. Fig. 4 is an enlarged fragmentary* transverse section of the beam and indicating devices. Fig. 5 is a fragmentary plan view, on an enlarged scale, of a moditied construction of the indicating device.

Fig. 6 is a transverse sectional elevation in line 6 6', Fig, 5. Fig. 7 is a detail Sectional view of the beam in line 'f3-7, Fig. 4." Fig. 8 is a fragmentary transverse sectional elevation of a recording device for use-with the scale.

Like letters of reference refer to like parts in the several figures.

Figs. 1-3 show the lnventioii applied to a coinputingor price-indicating scale adapted more especially forwveighing ostal matter, and this construction will be rst described.

A represents the beam, which is of rocker form, having One-or more segmental circular bj ectof the: invention Ais toYV treads.on-bearinggfaces aE' Preferably thev l'iea'mconsistsoFtwo like parallel side pieces or. rockers resting and adapted to rockupon a supporting surface oin surfaces on a vsuitable base Bl-whic-h `is preferably horizontal? andrfat; The-twobeam rockers-shown are connected -and held in the describjed frel'ation bya hub or sleeve c through which passes an `axle G'w-hih is'journaled or free to lturn in the` sleeveand is concentric with the bearing faces ofitlie rockers. The axle is preferably y A held from lateral movement in the sleeve and (the frictions! between thel partsreduced circular'lmife edge collars-.or enlarge -Iiieiits c ori-the axle'bea-ring in VshapedV l' grooves .in the'rockers.-

D. representsth'e scale pan or platformwhich, in'the scaleshown, b'a-s a depending `leg d witlnlateraltrunnionssupportcdibsuitableknifedges in bearings d" at theI upper; forwardends ofi` the rockers.

The scale paniscounterbalaneed-so as to be nor mally hieldvin the'raiisedfposition, shown in Fig. l, byx weightingthe opposite ends ofthe earn.

A1 weight-E supported lryandjoining therear ends of 'the two rockers is shown in t-h'e draw-ings. Thebeam-canbe weighted` tovcounterbalance the pan orvatform in any other suitable manner. l lien material is placed uponthe scale pan or platform the.

beamwill rock ou roll along 'the supportingbase until an .equilibrium is established, due to the shifting-of the-bearing or fulcrum points-of the beam. In thisrocking or rol-lJ ing of the` beam the axle-G will travel in a path parallel with the su ase: B; or in a straight orizontal line. in the scale shown, and the Weight-of the ina- -terial-onthe pan ori-platform can be shown by an indexbr indicating device attached ortin g surface oi'- to the axl C and inovin'vl -along a rela-tively fixed. graduated scale, rbya; graduated scale movedrbry the axle pastarelatively fixed index oir-pointer; In-the construction shown in Figs. 1f3, one end ofthe axle cai'- ries an index= or pointer F which moves alon -a relatively stationary graduated scale-V bar r'nrovid'ed With weightiind-icating characters. Figs.- 5 andG illustrate a reversa of these indicating means, inwhich a bar F provided Awith weight' indicating `chai-ac.- 1

ters is fixed tothe axle C and`is.moved thereby beneath arelatively stationary shield G. having. :fn opening g', through which the character Ion the' vbar directly beneath the opening can be seen. l

The treads or bearing edges of the beam rockers are preferably reduced Aor have knife edges to reduce the friction between them and thesupporting surface, and they are also preferably notched, as indicated at 'i in Fig. 1, so that the beam \villi-ock from point to point of.i ts1bearing edges and will cwi-ane to restwith two adjacentlpointsof each rocker bearing on the i'ipp'iirting sur- Y equilibri In s 'established face. v/Vhen ank therefor the be and notfoscillziteY giving a.l more of the weight' bain stationery orth,n

' of the beaiir'nls 'especially desirabldv when' the scale is provided with recording means, as the reeordinf'f 'chaiactei` i "ll tl impression device the ,impression v Suitablemeans ii or sliding on th upp and'th'e'reby'causing th in ic incorrect i eadi iigy Foi lthi base B sli'owii'is p beam rockersj vided with o1 cessively recei`\ from the,roekersr larger than thefpins ,p l

tact. of the' latter witl the dg in tlie.- .iioi-'rria l operation `offthe' beam."

pins andy s lots'do not,therefoiie, rappreciably.

serve. to i pli-event-gv displacement ofthefbeam on" the base". .fIhe following means are als vided forretaining the" le-'pan in` horizontal position: A 'leg'ior 'post L, Figs.

1 and 3, is fixed tothe axle Gand depends.'

therefrom through aV slot l in` Ith `egbeain hub,

ends to thc leg of the scalen pan or platformand said post L, at equal distances from the axes of oscillation of the beaii'i'and the scale-pun. rod lz vis fixed atrone end to the post L, or is otherwise connected tothe axle C, and slides through a guide opening link l acts in the same manner as the ordi-` arallel link to hold the pan or plat-l nary form iorizontal. Any other suitable means for thus holding the axle from turning and maintaining the horizontal position of the pan or platform could be employed. The scale above described is adapted for indicating the. price of different materials broughtt'fa; "denite .posit n opposite" the j scale, butthe shieidis atioi'iary while" v the lieanifflii'it ie ihorizontal t shift-ing .0r

and a link or rodl; is pivoted at `opposite' freely through its bearing opening as the.

weighedthereon, and for this purpose, in

the construction shown, the end of the axle C opposite to the index or pointer l*` is provided with a shield or plate M having :in

opening m which nieves over a price plate. provided with price. indications adapted to be successively exposed to view through the opt-ning'of the shield. lhe scale'ilustrated is iiiteiided for weighing posta-l 1natter,'a'nd the price plate is provided with characters to indicate. the amount of postage, domestic or' foreign, for the differentclasses of mail matter, thefprices for iliei'entclasscs of mail matteibeing ar- 'ranged in parallel rows on the plate, The 'i ipjening of the shield preferably only large enough'to diseloseonecharacter or indieation vin any one position of the shield, "seas 'to' avoid confusion in the use of the dapted to he. shiftosition 'witlr'ftsfopcning above itlier of the rows ofc iacters. Tlie-shield lis carried by'ifal 1 `n the hollow axleNG-fto e'nablefsnch c n. triiction just de# githe pricefof thef1na ghedv i's simply given as an ble construction iiioved by the a ent type, which provided withl characiters indicating'v differentwightS, be-

A record sheet q and an i'nk 'ri b' 1 i'or marking sheet q of anysuitable sort Haie arranged one above theyot-h'er, between the impression device and 'the type-bar, and `wliei i the impression device is forced down od Ofarranged to icefindieating or computingv C in* some v'suitibl inannersolas leto place the differ'-v 4'ith-a recording plunger oriiiipr'essioi'i` de-l thefrecord sheetandvniarking sheet or rib-,

bonwill beipressed against the type beneath theinipression device and 'an impression made on the record sheet by the type, vwhich will indicate the weight of the material xon the pan at the time the impression is made. The notched bearing edges of the beam rockers above mentioned insure the proper registration ot the type with the iinpressiondevice and hold the type-bar sta# tionary duringr the production of the record'` so that a perfect impression will be secured and there will be no possibility of the record sheet being pressed against two vadjacent type. A bed orv purt r can be prolvided beneath the type-bar to atord a solid support for the same and prevent t-lie'tiexure of the bar and relieve the bearings tof porting surface, a beam'v having a curved bearing tread arranged to rock'on said-sup-V porting surface, means conneetedto lsaid v"alors/tee Any other suitable recording mechanism face, a beam having a curved bearing tread arranged to rock on said supporting surfa,

means connected to said beam for support` ing'the article to be weighed,'an indicating device, and connections between said indieating device and said beam whichcause said indicating device to move in a path Aparallel with said supporting-surface, (substantially as set forth.

2. The combination of a supporting surface, a beam having a curved bearing tread arranged to rock on said supporting surface, means connected to said beam for supporting the article to be weighed, and. an indieating device which is connected to said beam coneentrieally with said'curved tread and moves therewith in a path parallel with said supporting surface, substantially as set forth. 3. The combination of`a .horizontalsupbeam for supporting the article to be weighed, and` an indicating devie'lwhich is mounted on said beam eoneentrieallywith said curved tread and isfr'nknve'dtherebyr i straight horizontal path. substantially asset forth.

V4. The combination of a supportlngsun face, a beam having a curved bearing tread arranged to rock on said supporting surface,

means connected to-sa'id beam .for supporting the article to be \veighed,fan= indicating device which is movably connected to said beam conoentrically with said curved tread and is moved thereby in aA path parallel with said supporting surface, and means foi-holding said indicating device from rocking with said beam, substantially as set forth.

5. The combination of a, supporting surface, a beam having'a. curved bearing tread arranged to rock on said supporting surface, means connected tosaid beam for supporting the article to be weighed, an axle journaled on said beam eoncentrieally with said.

curved tread. and an indicating device connected to said axle, substantially as set forth.

f'lhe combination of a. supporting surface, a beam having rockers with curved bearing' treads adapted to rock on said supporting surface and carrying a pan or platform, and an indicating device loosely mounted on said beam coneentrically with the curved-treads of said rockers, substantiallv as set forth. 7. The combination of a supporting surface, a beam having a curved bearing tread arranged to rock on said supporting surface, means connected to-said beam for supportland moved thereby.

4said".supporting'-` surfaee` andl recording lll/a i ing the article 'to' be l\\ei .f rhed, and a device providedvith characters connected to said beam conoeutrically with said curved tread suliistanti'ally as set f orth. 4

i 8.- I`hecombination of a supporting surface, a beam havinga curved bearing tread arrangedtorock on said' su 1 )porting surface,

lmeans connectedto said beam for support- 'mg the article to be vJengrhed.A a device provided withtrelcrding characters. connected to .said beam and` moved thereby in a path parallel with said-:supporting surface, 'and reeordingmeans coperating with said devicehaving the lcharacters, substantially as set forth.

9. The eoinbination of a supporting surface, a beam having a curved bearing face arranged to rock on' said supporting surfa ce\4 means connected to said beam for supporting the article to be \'ei,frhed, a device provided with characters connected to said beam concentrically vith 'said curved bearing.- facel'and move hereby parallel with means" cope'rating with' said character de- `vieeto" produce arecord, substantially as set 10.`v 'lhecombinatlon plain supporting surface, abeamliaving a curved tread withv spaced bearingproject-ions arranged to rock on'saidsupporting surface, means for preventing displa'cementjof'the beam on said surface, 'andimea'n eonneetcdto the beam forsupporting .the-'article to be weighed, substantially-as`set forth. y

"11., The combination of a supporting surface, a beam having a curved bearing,r face arranged to rock on said su pportirig surface, a pan or platform pivoted to said beam, and means'carried by the beam and connected with a lpart,independent of said beam to hold, said pan or platform substantially horizontal, substantially as set forth.

12. The combinationof a beam having a. curved bearing face arranged to'rocl( on a supporting surface, a`pan or platform pivoted to said beam, an axle journaled on said beam, means for holding said axle from rocking with the beam, and means connecting said axle and said pan or platform to hold the latter horizontal, substantially as Set fortht 13. The combination ofa beam having a Curved bearing' face arranged to rock on a' supporting surface, a pan or platform pivotcd to said beam, au axle jonrnaled on said beam conccntricallv with its bearing face, a sliding rod connected to said axle. and al link connected to said axle and panorplatform to hold the latter horizontal, substantiallyY as set forth.

14. '.l`he combinationof a rocking vscale beam, an axle arranged coneentri'eally with the arc of movementof the beam, and bearings for saidvaxle consisting of circular collars thereon which roll and are confined in circular sockets in the beam, and an indieating device connectedto said axle, substantially as set forth.

' 15. The combination .of a rocking Scale beam, a part and means for holding said part from 'rocking with said beam, anda bearing between said beam and said partv consisting of a circular thin edged 'bearing l*portion on one of said parts and a circularv bearing portions on theyother, substantially 1- as set forth.

Witness my hand, this 28th day of July,

HARRY CUMMER. Witnesses:

C. B. HORNBECK, A. L. MCGEE. 

